TNPSC VAO Physics & Chemistry Study Material In Tamil

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TNPSC VAO Physics & Chemistry Study Material In Tamil

Heat capacity is an extensive property of matter, meaning that it is proportional to the size of the system. When expressing the same phenomenon as an intensive property, the heat capacity is divided by the amount of substance, mass, or volume, thus the quantity is independent of the size or extent of the sample. The molar heat capacity is the heat capacity per unit amount (SI unit: mole) of a pure substance, and the specific heat capacity, often called simply specific heat, is the heat capacity per unit mass of a material. Nonetheless some authors use the term specific heat to refer to the ratio of the specific heat capacity of a substance at any given temperature to the specific heat capacity of another substance at a reference temperature, much in the fashion of specific gravity. In some engineering contexts, the volumetric heat capacity is used.

Chemistry is a big part of your everyday life. You find chemistry in daily life in the foods you eat, the air you breathe, cleaning chemicals, your emotions and literally every object you can see or touch. Here’s a look at 10 examples of everyday chemistry.┬áSome common chemistry may be obvious, but others might surprise you.

Your body is made up of chemical compounds, which are combinations of elements. While you probably know your body is mostly water, which is hydrogen and oxygen, can you name the other elements that make you

The functional group on aldehydes and ketones is a carbonyl group (double bond oxygen to a carbon). In aldehydes, the carbonyl group is on the “end” of a carbon chain, while in ketones, it is in the “middle” of a carbon chain.

The double bond in the carbonyl group is very susceptible to chemical reactions. In this chapter, we will study oxidation and reduction reactions and the formation of hemiacetals and acetals (new functional groups). The
primary focus of these reactions will be to eventually understand the structures and reactions of carbohydrates.

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